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Finding the Fourth Proportional to 551,408.40, 827,112.60 and 235,897.20

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Solution

The fourth proportional to 551,408.40, 827,112.60 and 235,897.20 is: 353,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,408.40 : 827,112.60 = 235,897.20 : x
  2. Step 2: Convert to fraction form
    551,408.40/827,112.60 = 235,897.20/x
  3. Step 3: Cross multiply
    551,408.40x = 827,112.60 × 235,897.20
  4. Step 4: Simplify right side
    551,408.40x = 195,113,546,424.72
  5. Step 5: Solve for x
    x = 195,113,546,424.72/551,408.40
  6. Step 6: Final answer
    x = 353,845.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.